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P0717 Chevrolet Code - Transmission Input Speed Sensor Circuit No Signal

Quick Answer

The P0717 code for Chevrolet vehicles indicates a problem with the transmission input speed sensor circuit, specifically that there is no signal being received. Common causes include Faulty Input Speed Sensor: The sensor itself may be malfunctioning or have failed, causing a lack of signal to be sent to the transmission control module, Wiring Issues: Wiring connections to the input speed sensor or within the circuit may be damaged, loose, or corroded, disrupting the signal transmission, Transmission Control Module (TCM) Failure: A malfunctioning TCM can prevent the input speed sensor signal from being properly interpreted and utilized. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P0717 Chevrolet indicates Transmission Input Speed Sensor Circuit No Signal.
Common causes
Common causes include Faulty Input Speed Sensor: The sensor itself may be malfunctioning or have failed, causing a lack of signal to be sent to the transmission control module, Wiring Issues: Wiring connections to the input speed sensor or within the circuit may be damaged, loose, or corroded, disrupting the signal transmission, Transmission Control Module (TCM) Failure: A malfunctioning TCM can prevent the input speed sensor signal from being properly interpreted and utilized.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
What is this?
Table of contents Created and updated by William Orellana on Sep 06, 2024
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Code P0717 Chevrolet Description

The P0717 code for Chevrolet vehicles indicates a problem with the transmission input speed sensor circuit, specifically that there is no signal being received. The input speed sensor is responsible for monitoring the speed of the input shaft into the transmission. This information is crucial for the proper operation of the transmission, as it helps the vehicle's computer control shift points and overall performance. Without a signal from the input speed sensor, the transmission may not shift correctly, leading to poor performance, decreased fuel efficiency, and potential damage to the transmission over time.

OBDII Code P0717 Chevrolet - Transmission Input Speed Sensor Circuit No Signal
P0717 Chevrolet Code - Transmission Input Speed Sensor Circuit No Signal

Common Causes of P0717 Chevrolet

  1. Faulty Input Speed Sensor: The sensor itself may be malfunctioning or have failed, causing a lack of signal to be sent to the transmission control module.
  2. Wiring Issues: Wiring connections to the input speed sensor or within the circuit may be damaged, loose, or corroded, disrupting the signal transmission.
  3. Transmission Control Module (TCM) Failure: A malfunctioning TCM can prevent the input speed sensor signal from being properly interpreted and utilized.
  4. Transmission Fluid Contamination: Contaminated or degraded transmission fluid can affect the performance of the input speed sensor and lead to circuit issues.
  5. Electrical System Problems: Issues with the vehicle's electrical system, such as a blown fuse or relay, can interrupt the signal flow to the input speed sensor.

Symptoms of P0717 Chevrolet

  1. Check Engine Light: The most common symptom associated with this code is the illumination of the check engine light on the dashboard.
  2. Delayed or Harsh Shifting: The transmission may experience delayed or harsh shifting between gears, affecting the vehicle's acceleration and overall driving experience.
  3. Erratic Speedometer: The speedometer may fluctuate or show inaccurate readings due to the lack of input speed sensor data.
  4. Loss of Power: The vehicle may have reduced power output or struggle to accelerate due to the transmission not receiving accurate speed data.
  5. Stalling: In severe cases, the vehicle may stall or have difficulty starting, as the transmission is not receiving the necessary information to operate properly.

How to Fix P0717 Chevrolet

  1. Diagnose the Issue: Using a diagnostic scanner, check for the P0717 code and perform a thorough inspection of the input speed sensor and circuit.
  2. Replace Input Speed Sensor: If the sensor is faulty, replace it with a new, OEM-approved sensor to ensure proper functionality.
  3. Check Wiring and Connections: Inspect the wiring harness and connections for any damage, corrosion, or loose connections, repairing or replacing as needed.
  4. Test Transmission Control Module: Verify the TCM's functionality and replace if necessary to ensure proper communication with the input speed sensor.
  5. Clear Codes and Test Drive: Clear the diagnostic trouble codes, reset the vehicle's computer, and test drive the vehicle to ensure the issue has been resolved and the transmission is operating correctly.

Cost to Fix P0717 Chevrolet

The cost of repairing a P0717 code on a Chevrolet vehicle can vary depending on the specific cause of the issue and the cost of parts and labor in your location. On average, you can expect to pay between $200 to $500 for parts and labor to address this problem. However, prices may differ based on the severity of the problem, the model of the Chevrolet vehicle, and the repair shop's hourly labor rates. It's recommended to obtain quotes from local auto repair shops to get a more accurate estimate for your specific situation.

What does this mean?

Tech Notes for P0717 Chevrolet

There are factory service bulletins for the following Chevrolet models:
2004 Chevrolet Classic
2000-2001 Chevrolet Lumina
2000-2004 Chevrolet Cavalier
2000-2004 Chevrolet Impala
2000-2004 Chevrolet Malibu
2000-2004 Chevrolet Monte Carlo
2000-2004 Chevrolet Venture
Chevrolet Factory Service Bulletin OBDII Code P0717

2008-2009 Chevrolet Equinox
2008-2009 Chevrolet Malibu
2009 Chevrolet Traverse
Chevrolet Factory Service Bulletin OBDII Code P0717

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Information for Specific Chevrolet Models

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P0717 Chevrolet Code

1. What are the common symptoms of OBDII code P0717 in a Chevrolet related to the Transmission Input Speed Sensor Circuit No Signal?

The common symptoms include issues with shifting gears, erratic speedometer readings, and the vehicle going into limp mode.

2. What are the possible causes of OBDII code P0717 in a Chevrolet?

Potential causes of this code include a faulty input speed sensor, damaged wiring or connectors in the sensor circuit, or issues with the transmission control module.

3. How can I diagnose the OBDII code P0717 in a Chevrolet?

Diagnosing this code typically involves using a scan tool to read the trouble codes, conducting a visual inspection of the sensor and its wiring, and performing electrical tests to check for proper signal output.

4. Can a DIY enthusiast repair OBDII code P0717 in a Chevrolet at home?

Repairing this issue may be possible for DIY enthusiasts, especially if it involves replacing the input speed sensor or repairing damaged wiring. However, more complex issues may require professional diagnosis and repair.

5. Is it safe to continue driving with OBDII code P0717 in a Chevrolet?

Continuing to drive with this code may cause further damage to the transmission system. It is recommended to address the issue promptly to prevent more severe problems.

6. How much does it typically cost to repair OBDII code P0717 in a Chevrolet?

The cost of repairing this code can vary depending on the root cause of the issue, parts needed for replacement, and labor costs. It is advisable to obtain quotes from multiple repair shops for an accurate estimate.

7. Can resetting the OBDII code P0717 in a Chevrolet make it go away permanently?

Simply resetting the code without addressing the underlying issue will not resolve the problem permanently. The code is likely to reappear until the root cause is identified and fixed.

8. Are there any preventative maintenance tips to avoid OBDII code P0717 in a Chevrolet?

Regularly checking the transmission fluid level and condition, as well as ensuring proper maintenance of the transmission system, can help prevent issues that may trigger this code.

9. How long does it take to repair OBDII code P0717 in a Chevrolet?

The repair time can vary depending on the complexity of the issue and the availability of parts. Simple repairs like sensor replacement may take a few hours, while more intricate problems could require more time.

10. Can a faulty input speed sensor cause other transmission-related issues besides triggering OBDII code P0717 in a Chevrolet?

Yes, a faulty input speed sensor can lead to various transmission problems, including harsh shifting, incorrect gear ratios, and even transmission failure if left unaddressed.

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